勻相催化 的英文怎麼說
中文拼音 [yúnxiāngcuīhuà]
勻相催化
英文
homogeneous catalysis-
Xrd tests show that we have prepared pure lanio3 and pt / c catalysts. the lanio3 powder is electrically conductive. sem examination shows that the pt / c catalyst is the powder of small granules and is uniform in morphology
測試結果表明，制得的鎳酸鑭粉體中含有氧化鑭相，粉體具有導電性；制得的pt c催化劑是純凈的pt和c相組分，粉體顆粒細小均勻。Simulating results reveal that hydrodynamics of catalysts in riser reactor is very complex due to the effect of injection and catalysts backmix dramatically near the nozzle, reaction products unevenly distributie along the riser height, there exists apparently temperature gap between gas - phase and solid - phase near the nozzle and the temperture of two phase is nearly equal at middle - top part
模擬結果表明，由於原料油射流的影響，提升管反應器內催化劑顆粒的流動特徵非常復雜，在噴嘴附近的催化劑顆粒存在明顯的滑落返混；裂化產物濃度沿提升管存在非均勻分佈；氣粒兩相間溫差在噴嘴附近顯著，在中上部氣粒兩相溫度幾乎相等。Application of uniform design in preparing catalysts for vapor phase oxidation of toluene
均勻設計法在甲苯氣相氧化催化劑制備工藝中的應用Compared with the catalyst prepared by precipitation, the catalyst prepared by microwave shows more homogenous distribution in particle and pore size and better catalytic activity with the yield of dpc of about 7 %
與沉澱法相比，微波法制備的催化劑具有比較均勻的尺寸和形狀，活性組分在載體上的分佈較好，催化劑活性較高，碳酸二苯酯的收率接近7 % 。The results show that, compared with cwq coke, the properties of cdq coke is much better in mean grain size, grain size uniformity, mechanical strength, thermal properties etc., the ash content, catalytic index ( mci ), optical texture index ( oti ) etc. are unchanged basically, and its alkali absorptance is strong, alkali resistance is weak, but its thermal properties are still superior to cwq coke after alkali absorption, its boron absorptance is weak, passivetion effect is bad, thus its thermal propetties is somewhat inferior to cwq coke after boron absorption
研究結果表明：與濕法熄焦焦炭相比，干法熄焦焦炭在平均粒度、粒度均勻系數、機械強度、熱性能等方面均有明顯改善；灰成分催化指數mci 、光學組織指數oti基本不變；而吸堿能力強，抗堿能力弱，但是吸堿后的熱性能仍優于濕法熄焦焦炭；吸硼能力弱、鈍化效果差，鈍化后干法熄焦焦炭的熱性能稍低於濕法熄焦焦炭。The experimental and simulation results show that using the improved structure of inlet header can greatly improve flow uniformity, decrease pressure loss, enhance the efficiency of twc, attribute to prolonging the service life of the machine, and lessen the power decrease caused by twc, but the light - off time of twc is retarded
通過模擬與試驗表明，與常規結構催化轉化器相比，組合型入口管可明顯改善流動均勻性，降低壓力損失約1 / 4 ，提高催化轉化器效率，延長使用壽命，減小對發動機動力性的影響，但起燃變慢。分享友人